A drainage pump, as the name suggests, is a tool used to discharge liquid from a reservoir or large storage tank.
Its working principle is as follows:
By utilizing the rotation of the impeller to induce centrifugal motion in water, the liquid gains energy under the action of inertial centrifugal force to increase pressure. Before starting, the pump casing and suction pipe should be filled with water, and then the motor should be started to drive the impeller and water to rotate at high speed. The water undergoes centrifugal motion and is thrown towards the outer edge of the impeller, flowing into the pressure water pipeline of the water pump through the flow channel of the snail shaped pump casing.
It should be noted that before starting, the pump casing must be filled with water, otherwise it will cause the pump body to heat up, vibrate, reduce water output, damage the water pump, and seriously cause equipment accidents.
A general drainage pump is used to transport clean water and other liquids with physical and chemical properties similar to clean water. It is suitable for industrial and urban water supply and drainage, high-rise building pressurized water supply, garden sprinkler irrigation, fire pressurization, long-distance transportation, HVAC refrigeration cycle, farmland irrigation, bathroom and other cold and warm water circulation pressurization and equipment matching.
So when using a drainage pump, be sure to fill the pump casing and suction pipe with water before proceeding to the next step.